Guiding device for grooving-tools.



J. A. STONE.

GUIDING DEVICE FOR GROOVING TOOLS.

APPLICATION FILED AUG-3!. 1910.

1,148,723. Patented Aug. 3, 1915.

a'orin A. sToN GEDER-RY, ivn'w HAMPSHIRE, assionon T0 UNITE-I) snon ivmon nn'nv GOMPANY, or rnrnnson, new JERSEYyA CORPORATION on NEW JERSEY.

ouinnve :onvzcn non snoovinenoons.

Specification of Letters iatent.

Patented Aug. 3, i915.

iippiieatim filed August 31, iii-1e. "Serial in. Biases.

To dl-ltvhom it may "concern Be-it known that 1, JOHN A. 'S'roiin', a citizen of the United states, residing at Derry, in the county ofRockingham and State-of New Hampshire, have invented certain Improvements in Guiding Devices for Grooving-Tools, of which the following description, in connection with the accompanying drawing's, is a specification, like referen ce characters on the drawings indicating like parts in the several figures.

This invention relates to channeling and grooving machines used in the manufacture of boots and shoes and more particularly to a device for conducting away the string of leather which is removed by the grooving tool. It is common in machines of this class to subject a sole to the action of a channeling knife and a grooving to ol,'the function of the knife being to produce a channel by raising a flap or lip near the edge of the sole, while that of the/grooving tool is to out a groovenear the base of the channel for the receptlon 'of the stitches by which the sole is subsequently attached. to the remaining portions of the shoe. These grooving tools, which are commonly tubular, remove by their action a comparatively slender string of leather from "each sole; and this string after it passes through the tubular tool ordinarily falls back into the groove from which it was removed so that after the channeling and grooving operations have been completed it is necessary for the operator to lift up a portion of the flap and pull the string from the groove.

Accordingly, the general object of this invention consists in the provision with a grooving tool for removing a string of leather from a sole or means arranged in the rear of said tool for conducting said string away from the groove from Which it was removed.

Another feature consists in the provision of a guiding member having a cut-away portion the purpose of which is to provide space for any twisting or crumpling of the string which may occur and thereby to lessen the tendency of said string to jam in said device. And this cut away portion is preferably provided in that side of the device which is remote from the sole so that the string will be kept clear at all times from the channel of the sole. It sometimes happens, however, that the string becomes jammed, and in orderto provide for such a contingency another feature of the invention consists in the provision of means for detachably connecting the conducting member with the grooving tool.

These and other features of the invention including certain details of construction and combinations of parts will be described in connection with the accompanying drawings andlpoi-nted out in the appended claims.

Referring now to the accompanying drawings :Fi-g'ure 1 is a per'spective showing certain parts of a channeling and grooving machine in w'liich'the present invention is embodied; Fig. 52 is a plan showing certain parts of the machine as they appear during the channeling and grooving of a sole, a string being shown issuing from the guiding device or string puller; and Fig. 3 is a perspective of the machine showing the grooving tool in operation upon a sole, the manner of attachment of the guiding device to the grooving tool being'more clearly illustrated.

*A feed wheel herein shown as comprising toothed sections 1 is arranged to be rotated by any suitable means and thereby to feed asol'e beneath a presser foot 8 to a channeling knife 5 and a grooving tool 7 the edge of the sole beingguided by a rotatable edge gage 9. The presser foot is fastened by means of'screws 11 to a block 13, said block being horizontally adjustable on a second block 15 by means of a screw 17, said second block being vertically adjustable on the headof the machine by means of a second screw 19. The knife, which is of a common type, is adjustably fastened to its stock 21 by a membe'r23 provided with pins 25 which pass through semicircular channels in the shank of the knife. The shank 27 of the tubular grooving, tool 7 is provided with a slotthrough which passes the shank of a headed clamping bolt 31.

This bolt also passes through the stock of the grooving tool and its farther end ,is engaged by a nut, not shown, whereby said tool is held firmly in adjusted position.

When a sole is fed through the machine, the knife acts as shown in Fig. 3 to out a channel near the edge of the sole, while the grooving tool cuts a groove near the base of the channel.

With the construction thus far described the string of leather cut from the sole by the grooving tool after passing through said tool comes into contact with the and tends to fall back into the guiding device 33 is arranged in the rear of the grooving tool. In the illustrated em bodiment this guiding device consists of a tube having a portionof its upperwall cut away whereby the string may more readily escape and jamming of the string in the device is avoided. In order thatthe guiding device may be adjustably fastened tothe grooving tool a slotted shank 35 is provided,.a guideway being formed in its forward face as shown in Figs. 2 and 3 for the reception of the shank of the grooving tool, and through one wall of this guideway is threaded a set screw ,37. The guiding device may thus be adjusted toward andvfrom the axis of the grooving tool to bring its bore into alinement withthat of the tool. In order to insure that the guiding device, when adjusted, shall be held rigid with the grooving tool the walls of the shank 35 are engaged by the head 39 of the bolt 31 so that the grooving tool and the guiding device may be firmly clamped to the tool stock.

In the operation of the machine, the sole is fed between the two disks and the presser foot and advanced to the channel knife and grooving tool which act to raise the channel flap and to cut, av groove near the'base of the channel as shown in Figs. 2 and 3, the guiding device receiving the string cut out by the grooving tool and guiding it well up and away from the channel so that no further separation of it from the sole is re.- quired.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. The combination with a grooving tool for removing a string of leather from a sole of a guiding device arranged in the rear of said tool for conducting said string away from the groove from which it was removed, said device comprising a member provided with a cut-away portion to permit the string to escape.

2. The combination of a grooving tool channel flap groove from which it was removed. In order to direct the string upwardly away from the groove a.

having a slotted shank, a guiding device arranged in the rear thereof and having a similar shank and .a clampingbolt passing through both slots and adapted to hold said tool and device rigidly together.

' 1;. 'A machine of the class described having, in combination, a channeling knife,

means for feeding a sole thereto whereby a" channel flap is formed on said sole, a tubular. grooving tool arranged in. the rear of said knife and adapted to remove a string of lea-ther from said sole, .and a member arranged in contact'with the rear vof said grooving tool and adapted to receive the string'removed by said tool and to conduct said string above the,top and away from said channel flap. v

The combinationwith a grooving tool for removing a string ofleather froma sole, said tool'being provided with aslotted shank the rear face of which coincides approximately with, the rear end of the tool, of a guiding device arranged in the rear of said tool for conducting said string away from the groove from which it. was removed,,and means for holding said guiding] device in place. v

'6. The combinationwith a grooving tool for removing a string of leather from a sole,

of a guiding device arranged in the rear of said tool for conducting said strlng .away

from the groove from which it was removed,

said device being adjustable transversely of the axis of the grooving tool.

In testimony whereof I have signed my,

nameto this specification in the presence of two subscribing witnesses.v

I JOHN A.- STONE:

. Witnesses: i I

JOHN G. CRAWFORD, Louis S. DowNINe.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. i 

